WELL · 42-105-33050 · DISTRICT 7
Shannon /Sohio #4
Crockett County · Shannon (San Andres) field · Vertical
Shannon /Sohio #4 (API 42-105-33050) is a well in Crockett County operated by Sundown Energy LP, completed October 14, 1980.
The RRC has issued one drilling permit, issued October 1, 1980, permitted to 2,500 ft.
It was permitted by Energy Resources Oil & Gas Corp. and has since transferred to Sundown Energy LP on the wellbore schedule.
Its 3 leases have reported 70.4K barrels of oil and 44 mcf of gas since January 1993, last reporting in July 2026. The leases carry 91 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Energy Resources Oil & Gas Corp.; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed May 4, 2026 · 300 permits on file · (866) 580-2434
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sundown Energy LP |
| Production reports | Clark Oil Co.through Apr 2026 |
| Latest permit | Energy Resources Oil & Gas Corp.Oct 1, 1980 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,500
- total depth, ft
- 1
- permits on file
- Oct 1, 1980
- last permit issued
- Oct 14, 1980
- completed
- 70.4K
- cumulative oil, bbl
- 44
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 14, 1980
- Shut in
- —
- Plugged
- —
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 3 leases this well is completed on; they carry 91 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Shannon Waterflood Unit O-9-17487 | Shannon (San Andres) | Clark Oil Co. | 74 | 50.4K | 0 | Jun 2011 – Jul 2026 |
| Shannon /Sohio O-9-2506 | Shannon (San Andres) | Sundown Energy LP | 13 | 19.1K | 24 | Jan 1993 – Jun 2012 |
| Shannon -C- O-9-1273 | Shannon (San Andres) | Energy Production Corporation | 4 | 916 | 20 | Jan 1993 – Mar 1995 |
Oil, barrels lease total
Last 12 months 4,035 · prior 12 3,238(+25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Texcal Resources, Inc.Jan 1993 → Apr 1994
- 2Energy Production CorporationMay 1994 → Nov 2002
- 3Zephyr Lone Star Oper Co.,l.l.c.Dec 2002 → Dec 2002
- 4Sundown Energy, Inc.Jan 2003 → Jan 2005
- 5Sundown Energy LPFeb 2005 → Jun 2017
- 6Clark Oil Co.Jul 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 94388-99 | Drill | Energy Resources Oil & Gas Corp. | Oct 1, 1980 | Oct 1, 1980 | Oct 11, 1980 | 2,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-1273 | — | — | — | — |
| — | — O-9-2506 | — | — | — | — |
| — | — O-9-17487 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,211 | 2,380 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 716 | 11 | 275 S |
| 2.375 | 2,398 | — | — |
| 4.5 | 2,500 | 7.875 | 300 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 8, 2012 | Dec 19, 1980 | — |
| 00 | Jan 13, 1995 | Dec 19, 1980 | — |
| 00 | Jan 12, 1984 | Dec 19, 1980 | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-105-33050 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-33050 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/10533050, documented in the API reference.